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MODGAS-XWR2 Technical Guide
LCD SCREENS
Alarms Menu and Slave Alarms
Alarms Menu and Slave Alarms
The alarm screens will display automatically when alarms are
present.
NOTE: The Slave Alarms Screen will only display on the
primary board if a secondary board is present.
ALARMS
MENU
SLAVE
ALARMS
ALARMS
NO ALARMS: This will be shown if there are no current alarms.
V1 NO DETECT: Gas Valve 1 is not detected.
V2 NO DETECT: Gas Valve 2 is not detected.
V1 NO PO FLAME: No Proof of Flame Ignition Module input is
detected.
V2 NO PO FLAME: No Proof of Flame Ignition Module input is
detected.
SAT CUTOFF: This indicates a Supply Air Temperature Cuto Alarm
condition which is activated if the SAT has risen above 200ºF. The
alarm will go away if after a xed delay period the SAT has dropped
below 200ºF.
SAT FAIL ERROR: The Supply Air Temperature sensor has been
disconnected for more than 60 seconds. This will cause the Heat to be
disabled. This alarm will be disabled when the sensor is reconnected
or detected.
COMM LOSS: Communications have been lost with the main
controller. This alarm will disable when communications resume.
12 RELAY BOARD COMM LOSS: Communications have been lost
with the 12 Relay Expansion Board. This alarm will disable when
communications resume.
STAGE 1 FAILURE: Indicates a failure to ignite Stage 1 Heat.
STAGE 2 FAILURE: Indicates a failure to ignite Stage 2 Heat.
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